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&nb= sp;

DI-EXTä<= /span> Standard

VESA

Video Electronics Stan= dards Association

860 Hillview Court, Suite 150    &nb= sp;            =             &nb= sp;            =             &nb= sp;                   =             Tel: 408 957-9270

Mil= pitas, CA 95035        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;         =             Fax: 408 957-9277

 

VESA Display Information Extension Block Standard=

 

Release A

 

August 21, 2001

Purpose

This standard defines an extension block data format to carry configuration information to allow for optimum use of analog and digital interfaced displ= ays. DI-EXT provides more detailed information than = is available in the base 128 Bytes (EDID Data Structure 1.3 or higher) as defi= ned in the E-EDID Standard (Release A or later).   <= /span>

 

Summ= ary

This document describes a 128-byte extension block data structure “DI-EXT” (Data Structure Version 1)= as well as the overall layout of the data that make up the Display Informat= ion Extension Block. DI-EXT is to be used with EDID 1.3 Data Structure (or late= r) as defined in the VESA Enhanced Extended Display Identification Data Standa= rd (E-EDID). DI-EXT contains additional information related to the digital interface and feature set of the display. This information is needed to sup= port “Plug & Play” for digital and analog interfaced displays.  Use of the DI-EXT extension block = described in this document requires that the addressing method described in the Enhan= ced Display Data Channel (E-DDC) Standard be used.

 

Note

This issue of the DI-EXT document contains specifications for the content of the Display Information Extension Block.  Refer to VESA E-EDID Standard for the mandatory core elements of Enhanced EDID and to VESA E-DDC Standard for the addressing method.

 

&nb= sp;

 =


Preface

 

Scope

This document defines the initial version (Data Structure Vers= ion 1) of the DI-EXT standard. It contains information related to the digital interface, the display device, capabilities and feature support contained in the display and display transfer characteristics.

 

Intellectual Property<= /span>

Co= pyright © 2001 Video Electronics Standards Association.  All rights reserved.

 

While every precaution= has been taken in the preparation of this standard, the Video Electronics Stand= ards Association and its contributors assume no responsibility for errors or omissions, and make no warranties, expressed or implied, of functionality or suitability for any purpose.

 

Trademarks<= span style=3D'font-size:14.0pt;mso-bidi-font-size:10.0pt'>

All trademarks used wi= thin this document are the property of their respective owners.

VESA, DI-EXT, EDID, E-= EDID and E-DDC are trademarks of the Video Electronics Standard Association.

DVI is a trademark of = the Digital Display Working Group (DDWG).

TMDS is a trademark of Silicon Image Inc.

HDCP is a trademark of Digital Content Protection, LLC.

LDI is a trademark of National Semiconductor.

 

Patents

The user’s atten= tion is called to the possibility that compliance with this VESA Standard may require the use of an invention or other items covered by a patent or other intellectual property rights. In publishing this standard, no position is t= aken by VESA with respect to the validity of this claim or of any intellectual property rights in connection therewith. The holder of the intellectual property in question has, however, filed with VESA a statement of willingne= ss to grant a license under these rights on reasonable and nondiscriminatory t= erms and conditions to applicants desiring to obtain such a license. Details may= be obtained from VESA.

 

Support for this Stand= ard

 

Clarifications and application notes to support this standard may be written.  To obtain the latest standard and = any support documentation, contact VESA.

 

If you have a product that incorporates DI-EXT, you should ask the company that manufactured your product for assistance.&= nbsp; If you are a manufacturer, VESA can assist you with any clarification you may require.  All comments= or reported errors should be submitted in writing to VESA using one of the following methods.

 

·         Fax     &n= bsp;            = ;      408-957-9277, direct this note to Technical Suppo= rt at VESA

 

·         E-mail     = ;   support@vesa.org

 

·         Mail to    &nbs= p;  Technical Support

        &= nbsp;           &nbs= p;   VESA

  &nbs= p;            &= nbsp;        860 Hillview Court, Suite 150

  &nbs= p;            &= nbsp;        Milpitas, CA 95035<= /span>

  &nbs= p;            &= nbsp;       

Revisi= on History

Initial release of standard, August 21, 2001

 

 

Acknowledgments=

 

This document would not have been possible without the effor= ts of the VESA Display Committee. In particular, the following individuals and= their companies contributed significant time and knowledge to this edition and or previous editions of the EDID document.

 

Name

Company

 =

Name

Company

Bill Milford

 

 

Jack Hosek

NEC-Mitsubishi

Chris Pasqualino

Broadcom

 

Mark Krueger

NVidia

Joe Goodart

Dell

 

Quang Nguyen

NVidia

James Webb

Display Labs

 

Glenn Adler

Philips

Don Chambers

Total Technologies<= /o:p>

 

Shaun Kerrigan

PixelFusion

Andre Bouwer

Genesis Microchip

 

Mark Stockfisch

Quantum Data

Anders Frisk

Genesis Microchip

 

Madan Venugopal

S3

Graham Loveridge

Genesis Microchip

 

Ian Miller

Samsung

Nik Vidovich

Hitachi=

 

Mark Hartney

Silicon Image

Bob Myers

Hewlett-Packard

 

Hugo Steemers

Silicon Image

Mike Choi

Intel, DPG

 

Robert Blanchard

Sony

Geoff Gould

Intel

 

Mark Eyer

Sony

Mike McTague

Intel, DAL

 

Steve Hasegawa

Sony

Steve Smedes

Intel

 

Peter Shintani

Sony

David Chen

Molex

 

Michael Stelts

Thomson Multimedia

 

 

 

John Matsumoto

 

 

 

 

Alain d’Hautecourt=

(Workgroup Leader)

ViewSonic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The VESA Display Committee acknowledges the contributions of the VESA Japan Committee.

 

 

 

 

 

 

 

 

 

 

 

 

 


Table of Contents

Revis= ion History.............................= ...........................................................................= ........................................................... <= /span>3

List of Tables......................................................................= ...........................................................................= ........................ 6

1.      OVERVIEW..........................................= ...........................................................................= ...................................................... 7

1.1   &nbs= p;        Summary..........................................= ...........................................................................= ................................................ 7

1.2    &= nbsp;       Background........................................................................= ...........................................................................= .......... 7

1.3    &= nbsp;       Standard Objectives...............................................................= .......................................................................... = 7

1.4    &= nbsp;       Reference Documents...............................................................= ....................................................................... 8

2.      Display Information Extension (DI-EXT) Block= ...........................................................................= ....... 9

2.1   &nbs= p;        DI-EXT Format Overview.....................= ...........................................................................= .................................. 9

2.2   &nbs= p;        Data Format Conventions..................= ...........................................................................= .............................. 11

3.      CONTENTS OF= THE DI-EXT BLOCK........................= ...........................................................................= .................... 12

3.1   &nbs= p;        General Information – 2 Bytes – Byte #00h to #01h.................................................................= .. 12

3.1.1=         &= nbsp;    Block Header – 1 Byte – Byte #00h........................................................................= ......................................... 12

3.1.2=         &= nbsp;    Version Number – 1 Byte – Byte #01h........................................................................= .................................... 12

3.2    &= nbsp;       Digital Interface – 12 Bytes – Bytes #02h= to #0Dh – (Monitors with a digital video interface)    13

3.2.1  &nbs= p;          Digital Interface Standard/Specification Supported &#= 8211; 1 Byte – Byte #02h.....= ...................................... 14

3.2.2  &nbs= p;          Digital Interface Standard/Specification Version/Revi= sion Number – 4 Bytes – Byte #03h to #06h 14

3.2.3  &nbs= p;          Digital Interface Data Format Description –  2 Bytes – Bytes #07h to #08h= ......................................... = 15

3.2.4  &nbs= p;          Min., Max. & Crossover Pixel Clock Frequency Per = Link - 5 Bytes – Bytes #09h to #0Dh.................. 17

3.3    &= nbsp;       Display Device - 6 Bytes – Bytes # 0Eh to # 13h= - (Monitors with analog and/or digital video interface/s)..........................................= ...........................................................................= ........................................................ 17

3.3.1  &nbs= p;          Sub-Pixel Layout, Configuration and Shape – 3 B= ytes – Bytes # 0Eh to # 10h.= .................................... 18

3.3.2  &nbs= p;          Dot/Pixel Pitch – 2 Bytes – Bytes # 11h t= o # 12h..........................= ............................................................... 19

3.3.3  &nbs= p;          Major Display Device Characteristics – 1 Byte &= #8211; Byte # 13h...................= ................................................. 20

3.4    &= nbsp;       Display Capabilities & Feature Support Set - 35 B= ytes – Bytes # 14h to # 36h - (Monitors with analog and/or digital video interface/s).................= ...........................................................................= ............ 21

3.4.1  &nbs= p;          Miscellaneous Display Capabilities – 1 Byte = 211; Byte #14h....................= .................................................... <= !--[if supportFields]> PAGE= REF _Toc519843792 \h = 22

3.4.2  &nbs= p;          Frame Rate Conversion – 5 Bytes – Bytes #= 15h to #19h.........................= ................................................... PAGE= REF _Toc519843793 \h = 23

3.4.3  &nbs= p;          Display/Scan Orientation – 1 Byte – Byte = #1Ah..........................................= ................................................ 23

3.4.4  &nbs= p;          Color/Luminance Decoding Description – 4 Bytes – Bytes #1Bh to #1Eh...= .......................................... 25

3.4.5  &nbs= p;          Monitor Color Depth – 7 Bytes – Bytes #1F= h to #25h.........................= ....................................................... 27

3.4.6  &nbs= p;          Aspect Ratio Conversion Modes – 1 Byte – = Byte #26h.........................= ...................................................... 28

3.4.6.1  &nbs= p;        Aspect Ratio Conversion Modes - Definitions & Data Structures...................= ................................................... 28

3.4.6.2  &nbs= p;        Aspect Ratio Conversion Modes - Examples (General Cas= es & Special Cases).........= ........................................ 29

3.4.7  &nbs= p;          Packetized Digital Video Support Information – = 16 Bytes – Bytes #27h to #36h................................. 31

3.5    &= nbsp;       Unused Bytes – 17 Bytes – Bytes #37h to #= 47h..........................................= ........................................ 31

3.6    &= nbsp;       Audio Support – 9 Bytes – Bytes #48h to #= 50h..........................................= ......................................... 32

3.7   &nbs= p;        Display Transfer Characteristic – Gamma Definition – 46 Bytes –  #51h to #7Eh - (Monitors with Analog &/or Digital Video Interface/s).................................................................= ............................................. 32

3.8   &nbs= p;        Miscellaneous Items – 1 Byte................= ...........................................................................= ........................ 36

3.8.1=         &= nbsp;    Checksum – 1 Byte – Byte #7Fh....= ...........................................................................= ........................................ 36

4.      APPENDIX A - Digital Data Formats................= ...........................................................................= ................... 37

4.1   &nbs= p;        Pixel Data Mapping Codes..................= ...........................................................................= ............................... 37

4.2   &nbs= p;        Summary Tables..............................= ...........................................................................= ........................................ 37

4.3   &nbs= p;        Data Format Details......................= ...........................................................................= ...................................... 38

4.3.1=         &= nbsp;    8-Bit Over 8-Bit RGB STN-DD - Code 15h....= ...........................................................................= ...................... 38

4.3.2=         &= nbsp;    12-Bit Over 12-Bit RGB STN-DD - Code 19h...= ...........................................................................= .................. 39

4.3.3  &nbs= p;          24-Bit MSB-Aligned BGR TFT - Code 24h {Single Link DV= I}..........................................= ......................... 39

4.3.4  &nbs= p;          48-Bit MSB Aligned BGR TFT {for Dual Link DVI –= High Resolution}- Code 48h........= ....................... 40

4.3.5  &nbs= p;          48-Bit MSB Aligned BGR TFT {for Dual Link DVI –= High Color} - Code 49h............= ........................... 41

5.      APPENDIX B – Legacy VGA/DOS Modes........= ...........................................................................= ........................ 42

6.  &nbs= p;   APPENDIX C – Illustrations..........................................= ...........................................................................= .......... 43

6.1    &= nbsp;       Landscape, Portrait and Major Axis..........................................= .......................................................... 43

6.2    &= nbsp;       Aspect Ratio Conversions.................................................................= .......................................................... 43

7.  &nbs= p;   APPENDIX D - Sample DI-EXT Block..........................................= ....................................................................... 46

7.1   &nbs= p;        EXAMPLE 1 DI-EXT Block......................= ...........................................................................= ................................. 46

7.2   &nbs= p;        EXAMPLE 2 DI-EXT Block..........................................= ...........................................................................= ............. 49

7.3   &nbs= p;        EXAMPLE 3 DI-EXT Block..........................................= ...........................................................................= ............. 53

7.4   &nbs= p;        EXAMPLE 4 DI-EXT Block......................= ...........................................................................= ................................. 57

8.  &nbs= p;   APPENDIX E – Glossary of Terms & Acronyms..........................................= ............................................ 61

 


List of Tables

 =

Table= 2‑1  --- DI-EXT Version 1 Overview        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;         9

Table 2‑2 --- Data Format Conventions        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;            11

Table 3‑1 --- Sub-Sections of “Conte= nts of the DI-EXT Block”   &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;             <= /span>12

Table 3‑2 --- Contents of the “Gener= al Information” Section   = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;    12

Table 3‑3 --- Block Header        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;          <= span style=3D'mso-field-code:" PAGEREF _Toc519843829 \\h "'>12

Table 3‑4 --- DI-EXT Version Number        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;  12

Table 3‑5 --- Contents of the “Digit= al Interface” Section   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           13

Table 3‑6 --- Digital Interface Standard/Specification Supported        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;   14

Table 3‑7 --- Digital Interface Standard/Specification Version/Revision Number            =             &nb= sp;            =             &nb= sp;            =         15

Table 3‑8 --- Digital Interfac= e Data Format Description            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =     16

Table 3‑9 --- Minimum PCF Per = Link, Maximum PCF Per Link & Crossover PCF        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;       17

Table 3‑10 --- Display Device<= /span>  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            17

Table 3‑11 --- Sub-Pixel Layou= t, Configuration & Shape        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;     18

Table 3‑12 --- Dot/Pixel Pitch=   &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;           19

Table 3‑13 --- Major Display D= evice Characteristics            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =           20

Table 3‑14 --- Display Capabil= ities & Feature Support Set        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;   21

Table 3‑15 --- Miscellaneous Display Capabilities     &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;         22

Table 3‑16 --- Frame Rate Conv= ersion  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;       23

Table 3‑17 --- Display/Scan Orientation            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =         24

Table 3‑18 --- Default Color/Luminance Decoding Description        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       25

Table 3‑19 --- Preferred Color/Luminance Decoding Description        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;  25

Table 3‑20 --- Color/Luminance Decoding Capabilities Description   &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;   26

Table 3‑21 --- Monitor Color D= epth  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;            27

Table 3‑22 --- Aspect Ratio Conversion Modes            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;        28

Table 3‑23 --- Aspect Ratio Conversion Modes Definitions        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;  29

Table 3‑24 --- Packetized Digi= tal Video Support Information        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;          31

Table 3‑25 --- Unused Bytes (Reserved)            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =           31

Table 3‑26 --- Audio Support  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            32

Table 3‑27 --- Gamma Definitio= n  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;    33

Table 3‑28 --- 4 Possible Scen= arios for Gamma Data Structures        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;     35

Table 3‑29 --- Checksum=   &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;       36

Table 4‑1 --- Summary of STN Data Formats<= span style=3D'mso-tab-count:1'>        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp; 37

Table 4‑2 --- Summary of TFT Data Formats<= span style=3D'mso-tab-count:1'>        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp; 38

Table 4‑3 --- Digital Format 15h        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;             = 38

Table 4‑4 --- Digital Format 19h        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;             = 39

Table 4‑5 --- Digital Format 24h        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;             = 39

Table 4‑6 --- Digital Format 48h (DVI --- = High Resolution)     &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;     40

Table 4‑7 --- Digital Format 49h (DVI --- = High Color)      &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p; 41

Table 5‑1 --- VGA/DOS Legacy Modes        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p; 42

Table 7‑1 --- DI-EXT – Example #1        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       46

Table 7‑2 --- DI-EXT – Example #2        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       49

Table 7‑3 --- DI-EXT – Example #3        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       53

Table 7‑4 --- Supported Video Formats for Example #4     &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;          57

Table 7‑5 --- DI-EXT – Example #4        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;       58

 


1.   &n= bsp;            OVERVIEW

1.1&= nbsp;             Summary

The Display Information Ex= tension (DI-EXT) Block, described in this document, is a data structure, with optio= nal variants, that allow the display to inform the host about its capabilities = and features. The DI-EXT Block, defined in this document is an E-EDID Release A-compliant extension block. It allows a display device to signal features = and capabilities that are not handled in the base 128-byte EDID data structure.= The DI-EXT data structure is independent of the video interface communications protocol (analog or digital) used between the monitor and the host.

 

The DI-EXT Block requires the use of EDID 1.3 data str= ucture (or later) as defined in the VESA Enhanced Extended Display Identification = Data (E-EDID) Standard. In addition, the use of the DI-EXT block described in th= is document requires the use of the addressing method described in the Enhanced Display Data Channel (E-DDC) Standard.

 

DI-E= XT contains the following:

1. Information related to the digital video interface (if present);        

2. Information related to the display device;

3. D= isplay Capabilities & Feature Support Set;

4. <= span style=3D'color:black'>Display Transfer Characteristics.

 =

DI-EXT can be used in an a= nalog or digital video interfaced system. In an analog video interfaced system, the digital content of DI-EXT must be ignored by the host system.  In the event that there is a confl= ict between DI-EXT content and content in the lower 128 bytes (EDID data struct= ure 1.3 or later), then the DI-EXT content has priority.

 

The "Primary Video In= terface Connector" as used in this document is the connector, which is current= ly connected (active) to the host, and the connector that contains the Display Data Channel (DDC), which transmits the EDID and DI-EXT data structures from the monitor/display to the host.

1.2&= nbsp;            Background

The E-EDID Standard was cr= eated to clarify how EDID extension blocks shall be used in order to handle identification of future monitor capabilities, while maintaining a basic le= vel of compatibility that can be used to uniquely identify the monitor. DI-EXT = is one of these extension blocks.

1.3&= nbsp;            Standard Objecti= ves

DI-EXT was developed by VE= SA to meet, exceed and/or complement certain criteria. These criteria are set for= th as standard objectives as follows:

·      =    Support Microsof= tâ= Plug and Play definition for displays.

·      =    Support the Digi= tal Visual Interface Specification (Version 1.0) and other recognized digital interface standards.

·      =    Provide informat= ion in a compact format to allow the graphic subsystem to be configured based on t= he capabilities of the attached display.

 


1.4&= nbsp;            Reference Docume= nts

Note: Versions identified here are current (at the releas= e of this standard), but users of this standard are advised to ensure they have = the latest versions of referenced standards and documents.

 =

·      =    Digital Display Working Group (DDWG) - Digital Visual Interface (DVI) Specifications, Versi= on 1.0, April 2, 1999

·      =    Digital Content Protection, LLC - High-bandwidth Digital Content Protection (HDCP) System, Revision 1.0, February 17, 2000

·      =    EIA/CEA-861, = 220;A DTV Profile for Uncompressed High Speed Digital Interfaces”, December= 1, 2000

·      =    EIA/CEA-861-A, “A DTV Profile for Uncompressed High Speed Digital Interfaces”, April 25, 2001 (Draft) or later

·      =    IBM Personal Sys= tem/2 Hardware Interface Technical Reference- Common Interfaces Video Subsystem

·      =    ISO 8859 Document (ASCII Definitions) - "Information Processing - 8 Bit Single-Byte Coded Graphic Character Sets"

·      =    ITU-R BT .470, R= ev 6, Dated 1998, Conventional Television Systems

·      =    Microsoft / Inte= l Plug and Play ISA Specification, Version 1.0, May 28, 1993

·      =    Microsoft / Inte= l Plug and Play Errata and Clarification Document, December 10, 1993

·      =    National Semicon= ductor - Open LVDS Display Interface (OpenLDI) Specification, Version 0.95, May 13, 1999

·      =    SMPTE-170M, Rev = 99M, Dated April 21, 1999, Television – Composite Analog Video Signal NTSC= For Studio Applications

·      =    SMPTE-240M, Rev = 99M, Dated 1999, Television – 1125-Line High Definition Production System – Signal Parameters

·      =    SMPTE-260M, Rev = 99M, Dated 1999, Television – 1125-Line High Definition Production System – Digital Representation and Bit-Parallel Interface=

·      =    SMPTE-274M, Rev = 98M, Dated Oct. 1, 1998, Television – 1920 X 1080 Scanning And Analog And Digital Interfaces For Multiple Picture Rates

·      =    SMPTE-293M, Rev = 99M, Dated April 21, 1999, Television – 720 X 483 Active Line At 59.94-Hz Progressive Scan Production – Digital Representation

·      =    SMPTE-294M, Rev = 97M, Dated Jan. 24, 1997, Television – 720 X 483 Active Line At 59.94-Hz Progressive Scan Production Bit-Serial Interfaces

·      =    TIA/EIA-644, “ELECTRICAL CHARACTERISTICS OF LOW VOLTAGE DIFFERENTIAL SIGNALING (LV= DS) INTERFACE CIRCUITS”

·      =    VESA - Digital F= lat Panel (DFP) Standard, Version 1, February 14, 1999

·      =    VESA - Display D= ata Channel, Command Interface (DDC/CI) Standard, Version 1, August 14, 1998

·      =    VESA - Enhanced Display Data Channel (E-DDC) Standard, Version 1, September 2, 1999

·      =    VESA - Enhanced Extended Display Identification Data (E-EDID) Standard, Release A, Rev. 1, February 9, 2000

·         VESA - Flat Panel Display Measurements (FPDM2) Standard, Version 2.0, June 1, 2001=

·         VESA - Monitor C= ontrol Command Set (MCCS) Standard, Version 1.0, September 11, 1998

·         VESA - Plug and Display (P&D) Standard, Version 1, June 11, 1997


 

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